HELPBUTTON property (Window) [Revelation On-Line Wiki]

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====== HELPBUTTON property (Window) ======


 
==== Description ====
 
 
If set to TRUE$ then the window displays a context-help button in its caption bar.  When clicked the cursor changes to a question mark, and subsequently clicking on a control in the window will send it a HELP event.
 
 
 
{{ButtonDemo.png?477x339}}
 
 
 
 
==== Property Value ====
 
 
This is a Boolean property.  If set to TRUE then the context-help button is displayed, otherwise it is hidden.
 
 
 
 
==== Property Traits ====
 
 
 
 
 
 
 
^Development^Runtime^Indexed^Scaled^Synthetic^
|Get/Set|Get/Set|No|No|No|

 

 


 
==== Remarks ====
 
 
This property implements the WS_EX_CONTEXTHELP Extended Window Style.  It cannot be used if either the MINIMIZEBUTTON or MAXIMIZEBUTTON properties are set to TRUE$.
 
 
 
 
==== Example ====
 
<code>
 
$Insert Logical

   

   // Example – Showing the context-help button for the current window.

   Call Set_Property_Only( @Window, "HELPBUTTON", TRUE$ )
 
 
 

</code>

 
==== See Also ====
 
 
HELP event, MINIMIZEBUTTON property, MAXIMIZEBUTTON property.